““In the broadest sense, there are at least two ways to use the danger of norms for comedic effect. The first is to feint across the norm boundary, but then retreat back to safety without actually violating it. The second way is to step across the boundary, violating the norm, and then to realize, like a child jumping into snow for the first time, “It’s safe over here! Wheee!” Here, for example, is a joke that flirts with, but doesn’t actually consummate, a norm violation: MARY: What do you call a black man flying a plane? JOHN: Uh . . . I don’t know… . MARY: A pilot. What did you think, you racist?! The humor here plays off the norm against racism. After Mary’s setup, John starts to squirm uncomfortably, afraid his friend is about to tell an offensive joke. But when Mary delivers the punchline, it’s sweet, safe relief. She wasn’t telling a racist joke after all. She was just playing! And a hearty chuckle ensues.42””